"The President believes in enforcing federal law," Press Secretary Sarah Huckabee Sanders said Thursday. "That would be his top priority. That is regardless of what the topic is, whether it's marijuana, or whether it's immigration, the president strongly believes we should enforce federal law."

She added, "The president's position hasn't changed, but he does strongly believe that we have to enforce federal law."

However, it seems that Trump's position has changed.

Trump sat down with 9NEWS political reporter Brandon Rittiman in July 2016, as he was running for president.

Rittiman asked whether Trump would allow recreational marijuana sales to continue if he took office.

BR: I want to drill down on a couple of Colorado issues. So, Chris Christie was one of the first sort of establishment guys to really jump in with both feet for you. He gets talked about as a possible (Attorney General) pick, but he was also the only presidential candidate who was campaigning saying he would use federal authority to shut down sales of recreational marijuana in states like Colorado.